<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
          <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
          <el-breadcrumb-item>商品管理</el-breadcrumb-item>
          <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
          <el-row :gutter="20">
            <el-col :span="8">
              <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
              </el-input>
            </el-col>
            <el-col :span="4">
              <el-button type="primary" @click="goAddPage">添加商品</el-button>
            </el-col>
          </el-row>
          <!-- table表格区域 -->
          <el-table :data="goodslist" border stripe>
            <el-table-column label="#" type="index"></el-table-column>
            <el-table-column label="商品名称" prop="goods_name" ></el-table-column>
            <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
            <el-table-column label="商品重量" prop="goods_weight" width="95px"></el-table-column>
            <el-table-column label="创建时间" prop="add_time" width="180px">
              <template slot-scope="scope">
                {{scope.row.add_time | timeFormat}}
              </template>
            </el-table-column>
            <el-table-column label="操作" width="250px">
              <template slot-scope="scope">
                <el-button type="primary" size="mini" icon="el-icon-edit">编辑</el-button>
                <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.goods_id)">删除</el-button>
              </template>
            </el-table-column>
          </el-table>
          <!-- 分页 -->
          <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]" :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper" :total="total">
    </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }
      this.$message.success('获取商品列表成功！')
      // console.log(res.data)
      this.goodslist = res.data.goods
      this.total = res.data.total
      // console.log(this.goodslist)
      // console.log(this.total)
    },
    // 分页处理函数
    handleSizeChange(newPageSize) {
      this.queryInfo.pagesize = newPageSize
      this.getGoodsList(0)
    },
    handleCurrentChange(newCurrentPage) {
      this.queryInfo.pagenum = newCurrentPage
      this.getGoodsList()
    },
    // 删除商品处理函数
    async removeById(id) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除！')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }
      this.$message.success('删除成功！')
      this.getGoodsList()
    },
    // 添加商品跳转页面
    goAddPage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
